I had a quick question for you guys
I'm in the designing stage of a DIY powerwall for my off grid property in E. Texas
I know I want around 45KWHrs of storage
So far I've been looking at using the Liito Kala NCR18650B batteries , They will cost approximately $187 KW/Hr shipped, that's just the cost of the batteries, it doesn't include the cost to assemble them into packs (total cost for these batteries will be around $8400)
But then I ran across these LTO cells , they claim 20,000 to 30,000 cycles, while the increase cycle life is certainly a benefit, they are even lower cost than the Liito Kala NCR18650b cells. The proce quoted to me with delevery comes out to $160 KW/Hr for the LTO Cells (Total cost for these cells will be about $7200)
they seem to have many advantages like cycle life, and reduced cell count, which shouldmake assemblingthe packs much easier and quicker. really the only downside I can find is the lower energy density, but this will be for a stationary powerwall, not an EV, so energy density is less of a concern for me.
I have ordered 10 of the LTO cells to test out, to see if they live up to the hype,but I can't just pop them into my 18650 cell tester.
Do you guys have any suggestions on how to give these cells a good test over the course of a few months, I'd like to build a battery tester for them, but really have no idea where to begin other than assembling a battery pack and then doing constant charge/discharge cycles on it, but I was hoping for something a little more automated
Any suggestions or ideas on how to properly test out these LTO cells would be greatly appreciated, also looking for BMS suggestions for this test pack
TIA,
Tim
I'm in the designing stage of a DIY powerwall for my off grid property in E. Texas
I know I want around 45KWHrs of storage
So far I've been looking at using the Liito Kala NCR18650B batteries , They will cost approximately $187 KW/Hr shipped, that's just the cost of the batteries, it doesn't include the cost to assemble them into packs (total cost for these batteries will be around $8400)
But then I ran across these LTO cells , they claim 20,000 to 30,000 cycles, while the increase cycle life is certainly a benefit, they are even lower cost than the Liito Kala NCR18650b cells. The proce quoted to me with delevery comes out to $160 KW/Hr for the LTO Cells (Total cost for these cells will be about $7200)
they seem to have many advantages like cycle life, and reduced cell count, which shouldmake assemblingthe packs much easier and quicker. really the only downside I can find is the lower energy density, but this will be for a stationary powerwall, not an EV, so energy density is less of a concern for me.
I have ordered 10 of the LTO cells to test out, to see if they live up to the hype,but I can't just pop them into my 18650 cell tester.
Do you guys have any suggestions on how to give these cells a good test over the course of a few months, I'd like to build a battery tester for them, but really have no idea where to begin other than assembling a battery pack and then doing constant charge/discharge cycles on it, but I was hoping for something a little more automated
Any suggestions or ideas on how to properly test out these LTO cells would be greatly appreciated, also looking for BMS suggestions for this test pack
TIA,
Tim